Per elieson



(No Model.) 2 Sheets--Sheet 1."

C. P. ELIESON.

STORAGE BATTERY.

No. 469,129; Patented Feb. 16, 1892.

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(No Model.) 2 Sheets-Shed 2. C. P. ELIESON. STORAGE BATTERY.

No 469,129. 7 Patented Feb. 16, 1892.

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UNITED STATES PATENT O F OHAIMSONOVITZ PROSPER ELIESON, OF LONDON, ENGLAND, ASSIGNOR OF ONE-HALF TO FREDERIO ALFRED PELLAS, OF OGGOBIO, ITALY.

STORAGE-BATTERY.

. I A SPECIFICATION forming part of. Letters Patent No. 469,129, dated February 16, 1892.

Application filed June4, 1891. Serial No. 395,091. (No model.)

To aZZ whom it may concern: same. Figs. 3 and 4 are an elevation and an Be it known that I, CHAIMSONOVITZ PROS- elevation partly in section of the electrodes PER ELIEsN,asubject of the Queen of Great separated. Figs. 5 and o are a vertical sec- Britain, residing at London, England, have tion and a sectional plan illustrating a inodi- 5 invented new and useful Improvements in fication of my invention.

Electrical Accumulators or Storage-Batteries, a a a a, or indicate a series of corrugated of which the following is a specification. and perforated cylinders, forming the positive Mfy invention relates to electrical accuinuelectrode, the perforations being shown in lators or storage-batteries. part in 'Fig. 4, and b b b b b are the cylin- IO Electrical accumulators or storage-batteries ders of the negative electrode, which are simias at present generally used have a number larly corrugated and .perforated. In the drawof plates, which deteriorate so rapidly as to ings I have shown each electrode as composed become comparatively useless in a short time, of five cylinders, (although a greater or lesser and this is especially the case with accumunumber may be used,) which cylinders are :5 lators used for electric traction. The princi-' alternately corrugated longitudinally and cirpal reasons of such short life are the buclc cumferentially, as shown most clearly in Fig. ling of the positive plates, and their rapid 1, and fitted one within the other, so as to be disintegration, chiefly owing to the gradual in contact. In order to prevent the two elec growth or expansion of the said plates and trodes from coming into contact, and thereby 20 the molecular increase of the active material formingashort circuit,Iadvantageously place and to the fact that such growth or enlargeindia-rubber strips 0 between the electrodes, ment is usually checked by the body or frame as shown in the drawings. which holds the active material, whereby the d e are contact-plates, which form metallic plates in their forcible expansion will assume connectionbetween the various cylinders of 3' 5 25 fanciful shapes or become warped, with the the positive and negative electrodes, respectresult that the said plates are nearer at some ively. points than others, whereby the uniformity of Although I have described the cylinders as the internal construction is in a short time being corrugated longitudinally and circumdestroyed, as is also the uniformity of the inferentially, it is obvious that the corrugations o ternal resistance between the plates. could extend in a helical direction around the The object of my invention is to obviate cylinders, provided the corrugations of one these defects; and to this end I provide elec-- cylindercross or are at an angle to those of trodes, each of which is advantageously built the other cylinder; also, I sometimes form up of a series of corrugated envelopes of cythe cylinders with small flanges instead of 5 lindrical or other desirable shape, composed with corrugations. As shown in Figs. 5 and of thin lead or other suitable metal and pref- 6, these flanges, which are indicated by the erably perforated. These envelopes are placed letter are arranged longitudinally and cirone within thevother, and the corrugations are cumferentially on alternate cylinders and on so arranged that those of one cylinder cross one side of each cylinder only; but it is obvi- 0 0 or are at an angle to those of the adjacent one that the saidflanges may be formed upon cylinders. both sides of each cylinder and arranged in In using my improved electrodes one is any desirable direction. placed within the other, suitable means be- Some of the advantages of myin'vention are ing provided for preventing them from comthat, owing to the very large surface obtained 5 5 ing into contact. by the use of a series of concentric cylinders, To enable my invention to be fully under- .I secure a large amount of storage capacity; stood,I will describe the same with reference that the method of construction afiords great to the accompanying drawings, in which-- strength, whereby I am enabled to use rela- Figure 1 is a vertical section of a pair of tively thin metal for the cylinders, thereby too 50 accumulator-electrodes constructed according greatly reducing the weight of anaccumulator to my invention, and Fig. 2 is a plan of the of given storage capacity as compared with I f I I V i series of juxtaposed corrugated and perforated metal'tubes united-together by a contact-pieee, as described, the corrugations of each of the several tubes composing such electrode being at an angle to those of its next adjacent tube or tubes.

OIIAIHSONOVITZ PROSPER ELIESON.

- \Vitnesses:

JOHN E. BOUSFIELD, Ofhe firm of G. F. Redfcrn & 00., i Sou/It Street, Finsburz London, Patent Agents.

W. O. BRoKENsHIRE. 

